15530+1547 HEI 239

 
 
15h 52m 58.00s +15 47' 33.6" P.A. 306 sep 1 mag 11.10,11.40
 
 
Coord 2000
15530+1547
Discov num
HEI 239
Comp
Coord arcsec 2000
15 52 58.00 +15 47 33.6
Date first
1982
Date last
2008
Obs
4
Pa first
313
Pa last
306
P.A. Now (θ)
306°
Sep first
0.8
Sep last
1.0
Sep. Now (ρ)
1"
Mag pri
11.10
Mag sec
11.40
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-021
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
306.4
Precise sep
0.994
Constellation
Serpens
Tycho2
1496-01915-1
last precise pa
306.4
last precise sep
0.994
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15530+1547 HEI 239 1997 3 317 0.7 11.10 11.40 155258.00+154733.6
15530+1547 HEI 239 2008 4 306 1.0 11.10 11.40 155258.00+154733.6

If you need more information about this double, apply for a data request form to the WDS.